My S3 was acting weird last night. Every time I looked at it, it was displaying the maps screen with directions to get back home. I never even used maps the entire day on either my phone or watch. Then I woke up a few minutes ago to see that it had started a workout for the last 7 hours. I know it I could have accidentally enabled it in my sleep, but I find that unlikely. Is there any way to delete a workout from the activity app?